CN103273047A - Metal pouring die of hydraulic core pulling structure - Google Patents
Metal pouring die of hydraulic core pulling structure Download PDFInfo
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- CN103273047A CN103273047A CN2013102184950A CN201310218495A CN103273047A CN 103273047 A CN103273047 A CN 103273047A CN 2013102184950 A CN2013102184950 A CN 2013102184950A CN 201310218495 A CN201310218495 A CN 201310218495A CN 103273047 A CN103273047 A CN 103273047A
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Abstract
The invention discloses a metal pouring die of a hydraulic core pulling structure. The metal pouring die comprises an upper die frame, a lower die frame, an upper die core and a lower die core, wherein the upper die frame and the lower die frame are vertically fastened, the upper die core is embedded on the bottom face of the upper die frame, the lower die core is embedded on the top face of the lower die frame, the upper die core and the lower die core form a forming cavity of the metal pouring die when being vertically matched, a first-side core pulling component and a second-side core pulling component are allocated on the left side and the right side of the lower die frame respectively, and a third-side core pulling component and a fourth-side core pulling component are allocated on the front side and the rear side of the lower die frame respectively. According to forming complexity of the metal pouring die, the core pulling components are independently allocated on four sides of the die, so that the metal pouring die is reasonable in design, flexible to operate and suitable for convenient manufacturing of different models. The core pulling components are driven by hydraulic oil, so that the metal pouring die is high in automation degree, direct in control, high in working efficiency and low in labor cost. The metal pouring die is controlled by travel switches, and core pulling strokes are designed to be adjustable, so that the metal pouring die is convenient and fast to operate and wide in application range.
Description
Technical field
The present invention relates to the technical field of mould, particularly a kind of hydraulic pressure casting of metals mould of structure of loosing core.
Background technology
Its casting type cavity shape of existing casting mold is comparatively complicated, so such mould generally all has the structure of loosing core, but majority adopts mechanical systems when loosing core operation, and the mechanical movement when namely utilizing the folding mould realizes that the die cavity inner core-body extracts operation.
The structure that machinery is loosed core because of its design principle foundation, has following defective: 1, mechanical system is easily in when design, complicated integral structure, bulky; 2, Mechanical Driven pattern, each quality of fit that leads is had relatively high expectations, and easily causes the big difficulty of actual fabrication; 3, mechanical mode, when mould often used, each auxiliary equipment abrasiveness was bigger, and whole the use shortened; 4, the machinery pattern of loosing core, its stroke, the distance of loosing core are the scale structure, and stroke distances is unadjustable, just in case the requirement of loosing core is when doing to change slightly, this mould need redesign structure separately, so the scope of application of this mould is narrower.
In sum, the loose core casting mold of pattern of existing mechanical still has big not enoughly, and overall technology is not perfect.
Summary of the invention
Technical problem to be solved by this invention is the present situation at prior art, a kind of novel structure, reasonable in design, flexible operation is provided, operates steadily, be fit to casting of metals mould wide, automaticity is high and the hydraulic pressure of long service life is loosed core structure.
The present invention solves the problems of the technologies described above the technical scheme that adopts: the loose core casting of metals mould of structure of hydraulic pressure, this mould includes the last framed and low mold frame that fastens up and down, and be embedded in the upper mold core of framed bottom surface and be embedded in the lower mold core of low mold frame end face, and the forming cavity of lower mold core composition mould when matching up and down with upper mold core; The low mold frame left and right sides is furnished with side one the loose core assembly, front and back side of assembly and side two of loosing core respectively and is furnished with side three assembly and side four assembly of loosing core of loosing core respectively; The side one assembly outer end of loosing core is furnished with side one hydraulic cylinder of loosing core, side one side one that the inboard drive end of hydraulic cylinder is furnished with the left and right sides slippage operation piece of loosing core of loosing core, and this side one loose core piece when stretching out its inner termination be positioned at forming cavity; The side two assembly outer end of loosing core is furnished with side two hydraulic cylinder of loosing core, side two side two that the inboard drive end of hydraulic cylinder is furnished with the left and right sides slippage operation piece of loosing core of loosing core, and this side two loose core piece when stretching out its inner termination be positioned at forming cavity; The side three assembly outer end of loosing core is furnished with side three hydraulic cylinder of loosing core, side three loose core the inboard drive end of hydraulic cylinder be furnished with before and after the side three of the slippage piece of loosing core, and this side three loose core piece when stretching out its inner termination be positioned at forming cavity; Side four is loosed core and distolaterally in the assembly is furnished with side four hydraulic cylinder of loosing core, and the loose core drive end control of hydraulic cylinder of side four has the side four of the inclination slippage operation piece of loosing core, and this side four loose core piece when stretching out its inner termination be positioned at forming cavity.
The measure of taking also comprises:
Above-mentioned low mold frame bottom surface two side positions are fitted with the mould pin respectively, and scarf has upper plate, lower roof plate between the mould pin; Upper plate, lower roof plate are worn simultaneously is furnished with the guiding slide bar, and this guiding slide bar other end is fixedlyed connected with the low mold frame bottom surface.
Above-mentioned middle part, low mold frame bottom surface vertical fixing has first dagger and second dagger, and first dagger, the second dagger height all equate with mould pin height.
Above-mentioned side one is loosed core and is furnished with side one seat of loosing core in the middle of the assembly; The loose core medial extremity of seat of side one is fixedlyed connected with low mold frame, and outboard end and side one hydraulic cylinder of loosing core is fixedlyed connected.
Above-mentioned side one top side of loosing core is fitted with side one stroke switch, and the side one inboard drive end interlock of hydraulic cylinder of loosing core has side one stroke switch lever, and side one stroke switch lever can cooperate with the touching of side one stroke switch, and the side one stroke switching signal break-make of control correspondence.
Above-mentioned side two is loosed core and is furnished with side two seat of loosing core in the middle of the assembly; The loose core medial extremity of seat of side two is fixedlyed connected with low mold frame, and outboard end and side two hydraulic cylinder of loosing core is fixedlyed connected.
Above-mentioned side two top side of loosing core is fitted with side two travel switches, and the side two inboard drive end interlock of hydraulic cylinder of loosing core has side two travel switch bars, and side two travel switch bars can cooperate with the touching of side two travel switches, and the side two travel switch signal break-makes of control correspondence.
The above-mentioned side three piece bottom side of loosing core is fitted with side three oblique guide pads, and side three guide pad bottom sides are fitted with side three slippage guide pads, and the outer end of side three slippage guide pads and the side three inboard drive end of hydraulic cylinder of loosing core is connected.
Above-mentioned side three oblique guide pad bottom side ends are shaped on indent skewed slot body, and the medial extremity of side three slippage guide pads is shaped on the oblique conductor of evagination, and the oblique conductor of evagination cooperates with indent skewed slot body.
Above-mentioned side four is loosed core and is furnished with side four seat of loosing core in the middle of the assembly; The loose core medial extremity of seat of side four is fixedlyed connected with low mold frame, and outboard end and side four hydraulic cylinder of loosing core is fixedlyed connected.
Above-mentioned side four top side of loosing core is fitted with side four-stroke switch, the side four inboard drive end interlock of hydraulic cylinder of loosing core has side four-stroke switch lever, and side four-stroke switch lever can cooperate with the touching of side four-stroke switch, and the corresponding side four-stroke switch lever signal break-make of control.
Compared with prior art, the loose core casting of metals mould of structure of hydraulic pressure of the present invention, this mould includes up and down the last framed and low mold frame that fastens, and is embedded in the upper mold core of framed bottom surface and is embedded in the lower mold core of low mold frame end face, and the forming cavity of lower mold core and upper mold core composition mould when matching up and down; The low mold frame left and right sides is furnished with side one the loose core assembly, front and back side of assembly and side two of loosing core respectively and is furnished with side three assembly and side four assembly of loosing core of loosing core respectively;
The invention has the advantages that: according to the moulding complexity of metal casting mould, the separate configurations assembly of loosing core respectively in mould four sides, it is reasonable in design, and flexible operation is fit to the convenient making of different models; The assembly of respectively loosing core all adopts the hydraulic oil type of drive, its operation automaticity height, and control is direct, and work efficiency improves, and labor cost reduces; Separate configurations top board mechanism, its structural integrity, continuity is strong; The configuration dagger is in order to strengthen the rigidity of low mold frame middle part, guarantees framedly not destroy when modelling, improves the service life of entire die; In view of different models when making, the skidding distance of core body also exists inconsistent, so this structure has adopted the control mode of travel switch, the stroke of will loosing core is designed to adjustable pattern, its simple operation is widely applicable; The cylinder design of loosing core that side three is loosed core becomes horizontal mode, and has adopted concavo-convex chute to interlock sliding linear running to be changed into slant operation, its structural design novelty, and slippage operates steadily, and structural reliability is strong.
Description of drawings
Fig. 1 is the schematic top plan view of the embodiment of the invention;
Fig. 2 goes up framed inner plane schematic diagram among Fig. 1;
Fig. 3 is the horizontal cross-sectional schematic of Fig. 1;
Fig. 4 is vertical cross-sectional schematic of Fig. 1;
Fig. 5 is the schematic three dimensional views of low mold frame in the embodiment of the invention;
Fig. 6 goes up framed schematic three dimensional views in the embodiment of the invention;
Fig. 7 is the schematic three dimensional views of lower mold core in the embodiment of the invention;
Fig. 8 is the schematic three dimensional views of upper mold core in the embodiment of the invention;
Fig. 9 is the front schematic view of side three oblique guide pads in the embodiment of the invention;
Figure 10 is that schematic diagram is looked on the left side of Fig. 9;
Figure 11 is the schematic top plan view of Fig. 9;
Figure 12 is the schematic three dimensional views of side three oblique guide pads in the embodiment of the invention;
Figure 13 is the front schematic view of side three slippage guide pads in the embodiment of the invention;
Figure 14 is that schematic diagram is looked on the left side of Figure 13;
Figure 15 is the schematic top plan view of Figure 13;
Figure 16 is the schematic three dimensional views of side three slippage guide pads in the embodiment of the invention.
The specific embodiment
Describe in further detail below in conjunction with the present invention of accompanying drawing embodiment.
To shown in Figure 16, figure grade is described as follows as Fig. 1: upper mold core 1, and lower mold core 2 goes up framed 3, low mold frame 4, mould pin 5, upper plate 6, lower roof plate 7, guiding slide bar 8, the first daggers 11, second dagger 12, the side one assembly A of loosing core, the side one hydraulic cylinder A1 of loosing core, the side one piece A2 of loosing core, side one A3 of loosing core, side one stroke switch A4, side one stroke switch lever A5, the side two assembly B of loosing core, the side two hydraulic cylinder B1 of loosing core, the side two piece B2 of loosing core, side two B3 of loosing core, side two travel switch B4, side two travel switch bar B5, the side three assembly C of loosing core, the side three hydraulic cylinder C1 of loosing core, the side three piece C2 of loosing core, side three oblique guide pad C3, indent skewed slot body C31, side three slippage guide pad C4, the oblique conductor C41 of evagination, the side four assembly D of loosing core, the side four hydraulic cylinder D1 of loosing core, the side four piece D2 of loosing core, side four D3 of loosing core, side four-stroke switch D4, side four-stroke switch lever D5, forming cavity Q.
The embodiment of the invention, the loose core casting of metals mould of structure of hydraulic pressure, this mould includes up and down last framed 3 and the low mold frame 4 that fastens, and is embedded in the upper mold core 1 of framed 3 bottom surfaces and is embedded in the lower mold core 2 of low mold frame 4 end faces, and the forming cavity Q of lower mold core 2 and upper mold core 1 composition mould when matching up and down; Low mold frame 4 left and right sides are furnished with side one the loose core assembly B, front and back side of assembly A and side two of loosing core respectively and are furnished with side three assembly C and the side four assembly D of loosing core of loosing core respectively;
The side one assembly A outer end of loosing core is furnished with the side one hydraulic cylinder A1 of loosing core, side one side one that the inboard drive end of hydraulic cylinder A1 is furnished with the left and right sides slippage operation piece A2 of loosing core of loosing core, and this side one loose core piece A2 when stretching out its inner termination be positioned at forming cavity Q;
The side two assembly B outer end of loosing core is furnished with the side two hydraulic cylinder B1 of loosing core, side two side two that the inboard drive end of hydraulic cylinder B1 is furnished with the left and right sides slippage operation piece B2 of loosing core of loosing core, and this side two loose core piece B2 when stretching out its inner termination be positioned at forming cavity Q;
The side three assembly C outer end of loosing core is furnished with the side three hydraulic cylinder C1 of loosing core, side three loose core the inboard drive end of hydraulic cylinder C1 be furnished with before and after the side three of the slippage piece C2 of loosing core, and this side three loose core piece C2 when stretching out its inner termination be positioned at forming cavity Q;
Side four is loosed core and distolaterally in the assembly D is furnished with the side four hydraulic cylinder D1 of loosing core, and the loose core drive end control of hydraulic cylinder D1 of side four has the side four of the inclination slippage operation piece D2 of loosing core, and this side four loose core piece D2 when stretching out its inner termination be positioned at forming cavity Q.
According to the moulding complexity of metal casting mould, the separate configurations assembly of loosing core respectively in mould four sides, it is reasonable in design, and flexible operation is fit to the convenient making of different models; The assembly of respectively loosing core all adopts the hydraulic oil type of drive, its operation automaticity height, and control is direct, and work efficiency improves, and labor cost reduces.
Middle part, low mold frame 4 bottom surface vertical fixing has first dagger 11 and second dagger 12, and first dagger 11, second dagger 12 highly all highly equate with mould pin 5; The configuration dagger is in order to strengthen the rigidity of low mold frame middle part, guarantees framedly not destroy when modelling, improves the service life of entire die.
Four side core-pulling assemblies of the embodiment of the invention are discussed below respectively:
Side one is loosed core and is furnished with side one A3 of loosing core in the middle of the assembly A; The loose core medial extremity of an A3 of side one is fixedlyed connected with low mold frame 4, and outboard end and the side one hydraulic cylinder A1 of loosing core is fixedlyed connected.Side one an A3 top side of loosing core is fitted with side one stroke switch A4, the side one inboard drive end interlock of hydraulic cylinder A1 of loosing core has side one stroke switch lever A5, and side one stroke switch lever A5 can cooperate with side one stroke switch A4 touching, and the corresponding side one stroke switch A4 signal break-make of control.In view of different models when making, the skidding distance of core body also exists inconsistent, so this structure has adopted the control mode of travel switch, the stroke of will loosing core is designed to adjustable pattern, its simple operation is widely applicable.
Side two is loosed core and is furnished with side two B3 of loosing core in the middle of the assembly B; The loose core medial extremity of a B3 of side two is fixedlyed connected with low mold frame 4, and outboard end and the side two hydraulic cylinder B1 of loosing core is fixedlyed connected.Side two a B3 top side of loosing core is fitted with side two travel switch B4, the side two inboard drive end interlock of hydraulic cylinder B1 of loosing core has side two travel switch bar B5, and side two travel switch bar B5 can cooperate with side two travel switch B4 touching, and the corresponding side two travel switch B4 signal break-makes of control.
The side three piece C2 bottom side of loosing core is fitted with side three oblique guide pad C3, and side three guide pad C3 bottom sides are fitted with side three slippage guide pad C4, and the outer end of side three slippage guide pad C4 and the side three inboard drive end of hydraulic cylinder C1 of loosing core is connected.Side three oblique guide pad C3 bottom side ends are shaped on indent skewed slot body C31, and the medial extremity of side three slippage guide pad C4 is shaped on the oblique conductor C41 of evagination, and the oblique conductor C41 of evagination cooperates with indent skewed slot body C31.It is the structure of tiltedly loosing core that side three is loosed core, and considers that mould structure is dull and stereotyped mode, and oil cylinder is designed to the inclination mode so inconvenience will be loosed core, Given this; The cylinder design of loosing core that side three is loosed core becomes horizontal mode, and has adopted concavo-convex chute to interlock sliding linear running to be changed into slant operation, its structural design novelty, and slippage operates steadily, and structural reliability is strong.
Side four is loosed core and is furnished with side four D3 of loosing core in the middle of the assembly D; The loose core medial extremity of a D3 of side four is fixedlyed connected with low mold frame, and outboard end and the side four hydraulic cylinder D1 of loosing core is fixedlyed connected; Side four a D3 top side of loosing core is fitted with side four-stroke switch D4, the inboard drive end interlock of hydraulic cylinder D1 of loosing core of described side four has side four-stroke switch lever D5, and side four-stroke switch lever D5 can cooperate with side four-stroke switch D4 touching, and the corresponding side four-stroke switch lever D5 signal break-make of control.
The advantage of the embodiment of the invention is: according to the moulding complexity of metal casting mould, and the separate configurations assembly of loosing core respectively in mould four sides, it is reasonable in design, and flexible operation is fit to the convenient making of different models; The assembly of respectively loosing core all adopts the hydraulic oil type of drive, its operation automaticity height, and control is direct, and work efficiency improves, and labor cost reduces; Separate configurations top board mechanism, its structural integrity, continuity is strong; The configuration dagger is in order to strengthen the rigidity of low mold frame middle part, guarantees framedly not destroy when modelling, improves the service life of entire die; In view of different models when making, the skidding distance of core body also exists inconsistent, so this structure has adopted the control mode of travel switch, the stroke of will loosing core is designed to adjustable pattern, its simple operation is widely applicable; The cylinder design of loosing core that side three is loosed core becomes horizontal mode, and has adopted concavo-convex chute to interlock sliding linear running to be changed into slant operation, its structural design novelty, and slippage operates steadily, and structural reliability is strong.
Most preferred embodiment of the present invention is illustrated, and various variations or the remodeling made by those of ordinary skills can not depart from the scope of the present invention.
Claims (10)
1. the hydraulic pressure casting of metals mould of structure of loosing core, this mould includes last framed (3) and the low mold frame (4) that fastens up and down, and be embedded in the upper mold core (1) of framed (3) bottom surface and be embedded in the lower mold core (2) of low mold frame (4) end face, and lower mold core (2) and upper mold core (1) are formed the forming cavity (Q) of mould when matching up and down; Described low mold frame (4) left and right sides is furnished with side one the loose core assembly (B), front and back side of assembly (A) and side two of loosing core respectively and is furnished with side three assembly (C) and side four assembly (D) of loosing core of loosing core respectively; It is characterized in that: described side one assembly (A) outer end of loosing core is furnished with side one hydraulic cylinder (A1) of loosing core, side one side one that the inboard drive end of hydraulic cylinder (A1) is furnished with the left and right sides slippage operation piece (A2) of loosing core of loosing core, and this side one loose core piece (A2) when stretching out its inner termination be positioned at described forming cavity (Q);
Described side two assembly (B) outer end of loosing core is furnished with side two hydraulic cylinder (B1) of loosing core, side two side two that the inboard drive end of hydraulic cylinder (B1) is furnished with the left and right sides slippage operation piece (B2) of loosing core of loosing core, and this side two loose core piece (B2) when stretching out its inner termination be positioned at described forming cavity (Q);
Described side three assembly (C) outer end of loosing core is furnished with side three hydraulic cylinder (C1) of loosing core, side three loose core the inboard drive end of hydraulic cylinder (C1) be furnished with before and after the side three of the slippage piece (C2) of loosing core, and this side three loose core piece (C2) when stretching out its inner termination be positioned at described forming cavity (Q);
Described side four is loosed core and distolaterally in the assembly (D) is furnished with side four hydraulic cylinder (D1) of loosing core, the loose core drive end control of hydraulic cylinder (D1) of side four has the side four of the inclination slippage operation piece (D2) of loosing core, and this side four loose core piece (D2) when stretching out its inner termination be positioned at described forming cavity (Q).
2. the hydraulic pressure according to claim 1 casting of metals mould of structure of loosing core, it is characterized in that: described low mold frame (4) bottom surface two side positions are fitted with mould pin (5) respectively, and scarf has upper plate (6), lower roof plate (7) between the described mould pin (5); Described upper plate (6), lower roof plate (7) are worn simultaneously is furnished with guiding slide bar (8), and this guiding slide bar (8) other end is fixedlyed connected with described low mold frame (4) bottom surface.
3. the hydraulic pressure according to claim 2 casting of metals mould of structure of loosing core, it is characterized in that: described low mold frame (4) middle part, bottom surface vertical fixing has first dagger (11) and second dagger (12), and first dagger (11), second dagger (12) highly all highly equate with described mould pin (5).
4. the hydraulic pressure according to claim 3 casting of metals mould of structure of loosing core is characterized in that: described side one is loosed core and is furnished with side one seat (A3) of loosing core in the middle of the assembly (A); The loose core medial extremity of seat (A3) of side one is fixedlyed connected with low mold frame (4), and outboard end and described side one hydraulic cylinder (A1) of loosing core is fixedlyed connected.
5. the hydraulic pressure according to claim 4 casting of metals mould of structure of loosing core, it is characterized in that: described side one loose core the seat (A3) top side be fitted with side one stroke switch (A4), the inboard drive end of hydraulic cylinder (A1) interlock of loosing core of described side one has side one stroke switch lever (A5), and side one stroke switch lever (A5) can cooperate with side one stroke switch (A4) touching, and corresponding side one stroke switch (A4) the signal break-make of control.
6. the hydraulic pressure according to claim 3 casting of metals mould of structure of loosing core is characterized in that: described side two is loosed core and is furnished with side two seat (B3) of loosing core in the middle of the assembly (B); The loose core medial extremity of seat (B3) of side two is fixedlyed connected with low mold frame (4), and outboard end and described side two hydraulic cylinder (B1) of loosing core is fixedlyed connected.
7. the hydraulic pressure according to claim 6 casting of metals mould of structure of loosing core, it is characterized in that: described side two loose core the seat (B3) top side be fitted with side two travel switches (B4), the inboard drive end of hydraulic cylinder (B1) interlock of loosing core of described side two has side two travel switch bars (B5), and side two travel switch bars (B5) can cooperate with side two travel switches (B4) touching, and corresponding side two travel switches (B4) the signal break-make of control.
8. the hydraulic pressure according to claim 3 casting of metals mould of structure of loosing core, it is characterized in that: described side three piece (C2) bottom side of loosing core is fitted with side three oblique guide pads (C3), described side three guide pads (C3) bottom side is fitted with side three slippage guide pads (C4), and the outer end of side three slippage guide pads (C4) and the described side three inboard drive end of hydraulic cylinder (C1) of loosing core is connected.
9. the hydraulic pressure according to claim 8 casting of metals mould of structure of loosing core, it is characterized in that: described side three oblique guide pad (C3) bottom side ends are shaped on indent skewed slot body (C31), the medial extremity of described side three slippage guide pads (C4) is shaped on the oblique conductor of evagination (C41), and the oblique conductor of evagination (C41) cooperates with indent skewed slot body (C31).
10. the hydraulic pressure according to claim 3 casting of metals mould of structure of loosing core is characterized in that: described side four is loosed core and is furnished with side four seat (D3) of loosing core in the middle of the assembly (D); The loose core medial extremity of seat (D3) of side four is fixedlyed connected with low mold frame, and outboard end and described side four hydraulic cylinder (D1) of loosing core is fixedlyed connected;
Described side four loose core the seat (D3) top side be fitted with side four-stroke switch (D4), the inboard drive end of hydraulic cylinder (D1) interlock of loosing core of described side four has side four-stroke switch lever (D5), and side four-stroke switch lever (D5) can cooperate with side four-stroke switch (D4) touching, and corresponding side four-stroke switch lever (D5) the signal break-make of control.
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| CN201310218495.0A CN103273047B (en) | 2013-06-04 | 2013-06-04 | Metal pouring die of hydraulic core pulling structure |
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| CN201310218495.0A CN103273047B (en) | 2013-06-04 | 2013-06-04 | Metal pouring die of hydraulic core pulling structure |
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| CN104325111A (en) * | 2014-10-23 | 2015-02-04 | 宁波华朔模具机械有限公司 | Die structure for production of automobile filter |
| CN105215319A (en) * | 2015-10-23 | 2016-01-06 | 宁波华朔模具机械有限公司 | A kind of die casting with lower tilt point pulled core structure |
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| CN110544830A (en) * | 2019-08-22 | 2019-12-06 | 中国电子科技集团公司第二十九研究所 | Manufacturing process method of double-ridge sealed horn antenna |
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| CN203265540U (en) * | 2013-06-04 | 2013-11-06 | 宁波华朔模具机械有限公司 | Metal casting die with hydraulic core pulling structure |
Cited By (5)
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| CN103551518B (en) * | 2013-11-08 | 2016-03-09 | 宁波华朔模具机械有限公司 | A kind of casting of metals mould of locking pulled core structure |
| CN104325111A (en) * | 2014-10-23 | 2015-02-04 | 宁波华朔模具机械有限公司 | Die structure for production of automobile filter |
| CN105215319A (en) * | 2015-10-23 | 2016-01-06 | 宁波华朔模具机械有限公司 | A kind of die casting with lower tilt point pulled core structure |
| CN106270450A (en) * | 2016-09-27 | 2017-01-04 | 浙江华朔科技股份有限公司 | A kind of die casting with multiple pulled core structure |
| CN110544830A (en) * | 2019-08-22 | 2019-12-06 | 中国电子科技集团公司第二十九研究所 | Manufacturing process method of double-ridge sealed horn antenna |
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Address after: 315806 Ningbo, Zhejiang Province, Beilun science and Technology Park in the west of the road, Yang Mao mountain road, 518 Patentee after: Zhejiang China Polytron Technologies Inc Address before: 315806 Ningbo, Zhejiang Province, Beilun science and Technology Park in the west of the road, Yang Mao mountain road, 518 Patentee before: Ningbo Huashuo Molding & Machine Co., Ltd. |